382871565 has 48 divisors (see below), whose sum is σ = 700689600. Its totient is φ = 192865536.

The previous prime is 382871561. The next prime is 382871581. The reversal of 382871565 is 565178283.

382871565 is a `hidden beast` number, since 3 + 8 + 2 + 87 + 1 + 565 = 666.

It is not a de Polignac number, because 382871565 - 2² = 382871561 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 382871565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (382871561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 486102 + ... + 486888.

It is an arithmetic number, because the mean of its divisors is an integer number (14597700).

Almost surely, 2^382871565 is an apocalyptic number.

It is an amenable number.

382871565 is a deficient number, since it is larger than the sum of its proper divisors (317818035).

382871565 is a wasteful number, since it uses less digits than its factorization.

With its predecessor (382871564) it forms an eRAP, since the sums of their prime factors are consecutive (1385 and 1386).

With its predecessor (382871564) it forms a Ruth-Aaron pair, since the sum of their distinct prime factors is the same (1383).

382871565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1386 (or 1383 counting only the distinct ones).

The product of its digits is 403200, while the sum is 45.

The square root of 382871565 is about 19567.1041546776. The cubic root of 382871565 is about 726.1355585496.

The spelling of 382871565 in words is "three hundred eighty-two million, eight hundred seventy-one thousand, five hundred sixty-five".